M580 (e)X80 RIO Drops
Original instructions
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Introduction
All BMEH58•040(S) Hot Standby CPUs support (e)X80 RIO drops. An (e)X80 RIO drop includes a main rack, and may also include an extended rack. The drop includes (e)X80 I/O modules.
An (e)X80 RIO drop can be connected via copper cable directly to the main ring, or as a sub-ring.
(e)X80 RIO drops provide deterministic communication so that (e)X80 RIO modules synchronize with CPU tasks.
NOTE: M580 Hot Standby CPUs support MAST and FAST tasks for M580 (e)X80 RIO drops. AUX0 and AUX1 tasks are not supported.
An M580 Hot Standby system can support a maximum of 31 RIO drops. The maximum number of drops depends on your choice of CPU.
Selecting an (e)X80 EIO Adapter Module
Each remote drop contains one (e)X80 EIO adapter module. The following adapter modules are available:
A BM•CRA312•0 adapter module in an (e)X80 EIO drop can be installed only in slot 0 (directly to the right of the power supply) in the main rack of the drop.
Remote Racks and Power Supplies
Each rack in an (e)X80 RIO drop contains its own power supply module. The choice of power supply module depends on the selected rack. Refer to the description of the Hot Standby local rack for a presentation of available M580 racks and power supplies.
The following racks can be used in a Modicon M580 Hot Standby system:
Rack Name
Main Remote Rack
Extended Remote Rack
BMEXBP••00 Ethernet/X Bus
X
X2
BMEXBP••021 Ethernet/X Bus
X
X2
BMEXBP••02 H1 Ethernet/X Bus
X
X2
BMXXBP••00 X Bus
X
X
X: allowed
–: not allowed
1. Requires a four-slot, redundant power supply.
2. Only X Bus ports are supported on the extended remote rack.
The number of racks in the (e)X80 RIO drop depends on the selected (e)X80 EIO adapter module. If you select a:
RIO Modules
The M580 Hot Standby system supports all M580 input and output modules. For more information, refer to the topic Modicon X80 I/O Modules in the Modicon M580 System Planning Guide for Frequently Used Architectures.
Disconnecting an RIO Drop
When an (e)X80 RIO drop is disconnected from the Ethernet RIO main ring: